CVE-2019-0586

Name: CVE-2019-0586
Creator: NVD / NIST
Published: 2019-01-08T21:29:02.207+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 15.40%

Last modified Jun 17, 2026

CVE-2019-0586 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory, aka "Microsoft Exchange Memory Corruption Vulnerability." This affects Microsoft Exchange Server.. EPSS estimates a 15.40% chance of exploitation in the next 30 days.

Description

A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle objects in memory, aka "Microsoft Exchange Memory Corruption Vulnerability." This affects Microsoft Exchange Server.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

15.40%

96.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions	Update
Microsoft	Exchange Server	2016	Cumulative Update 10
Microsoft	Exchange Server	2019	—

References

http://www.securityfocus.com/bid/106421Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0586Patch, Vendor Advisory
http://www.securityfocus.com/bid/106421Third Party Advisory, VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0586Patch, Vendor Advisory

Timeline

Published: Jan 8, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-0586?

How severe is CVE-2019-0586?

CVE-2019-0586 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 15.40% probability of exploitation in the next 30 days.

How do I fix CVE-2019-0586?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-0586?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST